694
FNCA52 TJSJ 231930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU APR 23 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-240800-
SOUTHEAST COASTAL PLAINS-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 50 40 50
TEMP (24H TREND) 69 (0) 86 (+1) 71 86
RH % (24H TREND) 85 (-3) 41 (-11) 88 47
WIND 20FT/EARLY(MPH) E 6 E 6 E 6 SE 10
WIND 20FT/LATE(MPH) NE 6 SE 9 E 6 S 10
MIXING HGT(FT-AGL/MSL) 4680 4760
TRANSPORT WND (MPH) SE 6 S 12
VENT RATE (KT-FT) 23400 47600
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-240800-
SOUTHERN HILLS-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 60 30 50
TEMP (24H TREND) 65 (-1) 84 (+3) 68 83
RH % (24H TREND) 94 (+4) 58 (-4) 95 63
WIND 20FT/EARLY(MPH) E 8 E 5 SE 6 SE 11
WIND 20FT/LATE(MPH) E 6 SE 6 SE 9 S 12
MIXING HGT(FT-AGL/MSL) 5720 5110
TRANSPORT WND (MPH) SE 5 S 14
VENT RATE (KT-FT) 22880 61320
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-240800-
NORTH COASTAL PLAINS-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 50 50 70
TEMP (24H TREND) 69 (0) 86 (+1) 70 87
RH % (24H TREND) 90 (0) 57 (-3) 93 59
WIND 20FT/EARLY(MPH) E 10 E 5 E 10 SE 13
WIND 20FT/LATE(MPH) SE 8 NE 11 SE 8 S 16
MIXING HGT(FT-AGL/MSL) 4660 6430
TRANSPORT WND (MPH) E 5 S 12
VENT RATE (KT-FT) 18640 64300
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-240800-
NORTHERN HILLS-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 60 50 70
TEMP (24H TREND) 67 (0) 85 (+2) 68 85
RH % (24H TREND) 92 (-2) 59 (0) 94 62
WIND 20FT/EARLY(MPH) E 9 E 5 E 6 S 12
WIND 20FT/LATE(MPH) SE 6 NE 9 S 6 S 13
MIXING HGT(FT-AGL/MSL) 5620 5850
TRANSPORT WND (MPH) E 2 S 12
VENT RATE (KT-FT) 11240 58500
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-240800-
WEST COAST-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 70 50 10 40
TEMP (24H TREND) 69 (+1) 87 (+2) 71 87
RH % (24H TREND) 91 (+1) 56 (-4) 93 62
WIND 20FT/EARLY(MPH) E 11 SE 10 E 8 SE 14
WIND 20FT/LATE(MPH) E 10 SE 8 SE 9 S 16
MIXING HGT(FT-AGL/MSL) 4810 4490
TRANSPORT WND (MPH) SE 5 S 17
VENT RATE (KT-FT) 19240 67350
DISPERSION 5 5
DSI 4 5 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-240800-
EASTERN INTERIOR-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 10 60 50 50
TEMP (24H TREND) 66 (-2) 85 (+2) 68 86
RH % (24H TREND) 94 (+4) 58 (-1) 95 61
WIND 20FT/EARLY(MPH) E 8 SE 5 SE 9 S 11
WIND 20FT/LATE(MPH) SE 6 E 9 SE 11 S 11
MIXING HGT(FT-AGL/MSL) 6730 6040
TRANSPORT WND (MPH) SE 5 S 14
VENT RATE (KT-FT) 26920 72480
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-240800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY MCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 40 60 60
TEMP (24H TREND) 64 (-3) 80 (+2) 67 81
RH % (24H TREND) 98 (+7) 63 (-1) 98 65
WIND 20FT/EARLY(MPH) E 6 LGT/VAR SE 8 S 8
WIND 20FT/LATE(MPH) LGT/VAR SE 9 SE 8 S 10
MIXING HGT(FT-AGL/MSL) 4920 4990
TRANSPORT WND (MPH) SE 6 S 14
VENT RATE (KT-FT) 24600 59880
DISPERSION 5 5
DSI 1 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-240800-
CENTRAL MOUNTAIN RANGE-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 70 30 40
TEMP (24H TREND) 64 (0) 84 (+5) 65 83
RH % (24H TREND) 94 (-1) 60 (-3) 96 65
WIND 20FT/EARLY(MPH) E 9 SE 5 SE 6 S 13
WIND 20FT/LATE(MPH) SE 6 SE 5 SE 8 S 14
MIXING HGT(FT-AGL/MSL) 7040 5520
TRANSPORT WND (MPH) SE 2 S 14
VENT RATE (KT-FT) 14080 66240
DISPERSION 5 5
DSI 1 5 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-240800-
CAYEY MOUNTAIN RANGE-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 50 50 50
TEMP (24H TREND) 65 (-1) 81 (+2) 67 81
RH % (24H TREND) 98 (+5) 62 (0) 97 66
WIND 20FT/EARLY(MPH) E 6 E 5 SE 6 S 9
WIND 20FT/LATE(MPH) LGT/VAR SE 6 SE 6 S 10
MIXING HGT(FT-AGL/MSL) 5500 5460
TRANSPORT WND (MPH) SE 5 S 14
VENT RATE (KT-FT) 22000 65520
DISPERSION 5 5
DSI 1 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-240800-
VIEQUES-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 50 60
TEMP (24H TREND) 72 (-2) 85 (0) 73 85
RH % (24H TREND) 83 (+6) 58 (+4) 91 60
WIND 20FT/EARLY(MPH) E 10 E 6 SE 11 SE 13
WIND 20FT/LATE(MPH) E 9 SE 8 SE 13 S 11
MIXING HGT(FT-AGL/MSL) 3030 3350
TRANSPORT WND (MPH) E 8 S 14
VENT RATE (KT-FT) 21210 40200
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-240800-
CULEBRA-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 50 60
TEMP (24H TREND) 74 (-1) 86 (+1) 74 87
RH % (24H TREND) 83 (+7) 56 (0) 92 59
WIND 20FT/EARLY(MPH) E 10 E 6 SE 11 SE 13
WIND 20FT/LATE(MPH) E 9 E 9 SE 13 S 12
MIXING HGT(FT-AGL/MSL) 3050 3480
TRANSPORT WND (MPH) E 8 S 15
VENT RATE (KT-FT) 21350 45240
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-240800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 20 50
TEMP (24H TREND) 70 (0) 88 (+3) 71 88
RH % (24H TREND) 90 (+5) 41 (-9) 91 48
WIND 20FT/EARLY(MPH) E 9 E 11 E 8 SE 14
WIND 20FT/LATE(MPH) E 12 SE 11 E 11 S 14
MIXING HGT(FT-AGL/MSL) 4740 4690
TRANSPORT WND (MPH) SE 7 S 14
VENT RATE (KT-FT) 28440 56280
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-240800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 30 50 30
TEMP (24H TREND) 73 (-2) 85 (+1) 73 86
RH % (24H TREND) 84 (+9) 57 (+2) 92 59
WIND 20FT/EARLY(MPH) E 10 E 8 SE 11 SE 12
WIND 20FT/LATE(MPH) E 9 SE 8 SE 13 SE 11
MIXING HGT(FT-AGL/MSL) 2830 3440
TRANSPORT WND (MPH) E 8 S 14
VENT RATE (KT-FT) 19810 41280
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-240800-
ST CROIX-
330 PM AST THU APR 23 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 50 10
TEMP (24H TREND) 72 (-2) 86 (+1) 72 86
RH % (24H TREND) 88 (+10) 60 (+4) 92 60
WIND 20FT/EARLY(MPH) E 9 E 8 SE 9 SE 10
WIND 20FT/LATE(MPH) E 9 SE 6 SE 11 SE 10
MIXING HGT(FT-AGL/MSL) 4220 4430
TRANSPORT WND (MPH) E 7 S 13
VENT RATE (KT-FT) 25320 48730
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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